XServer draws to incorrect window when using VirtuaWin

Pete sneakypete81@gmail.com
Tue Sep 7 15:54:00 GMT 2010

On 7 September 2010 14:38, Jon TURNEY <jon.turney@dronecode.org.uk> wrote:
> On 03/09/2010 10:01, Pete wrote:
>> On 13 August 2010 11:38, Pete<sneakypete81@gmail.com>  wrote:
>>> VirtuaWin (http://virtuawin.sourceforge.net/) is a virtual desktop
>>> manager for Windows that lets you switch between several "virtual
>>> desktops", similar to those provided in KDE&  Gnome.
>>> When switching between desktops that have CygwinX windows open,
>>> occasionally the Xserver draws to the wrong window. This is difficult
>>> to describe, so will continue with an example:
> I'm afraid I think this falls into the category of "known problems", see
> [1].
> The tricks that XWin uses to implement multiwindow mode don't seem to be
> compatible with the tricks that VirtuaWin uses to implement multiple
> desktops.
> [1] https://bugs.freedesktop.org/show_bug.cgi?id=21540

Thanks for your reply. You're right, this is the same issue. I'll
update the bug.

>>> Using Windows 7, Cygwin/X v1.8.0
>>> Steps to reproduce:
>>> 1) Install VirtuaWin from http://virtuawin.sourceforge.net/
>>> 2) Start the CygwinX server
>>> 3) Open a (DOS) cygwin window
>>> 4) Type "xterm&" twice, to open two xterm windows. Maximise these two
>>> windows to full screen.
>>> 5) Move one of these windows to desktop2
>>> 6) Type "ping google.com -n 1000" to get a stream of data appearing in
>>> the xterm window on desktop2
>>> 7) Go back to desktop1, and make sure the DOS cygwin window is selected
>>> 8) Switch back to desktop2. The "ping" xterm window should be selected.
>>> 9) Switch back to desktop1. The cygwin window should be selected.
>>> What should happen:
>>> The empty xterm session on desktop1 should be displayed in the window
>>> behind the cygwin window
>>> What happens:
>>> The ping data stream appears in the xterm window on desktop1, and
>>> continues receiving updates every second.
>>> Selecting the xterm window causes the ping data to disappear and the
>>> empty xterm session to be displayed correctly.
>>> This is reproducible every time. The critical thing is that if the
>>> xterm window on desktop1 is not selected after a desktop switch, it
>>> shows the data from the xterm window on desktop 2.
>>> FWIW, this problem doesn't exist with xming, and I haven't seen the
>>> issue with any other applications.
> Xming version number, please?

It was

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